Watch How An Infant Turns Random Noises Into Actual Words

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When MIT researcher Deb Roy’s kid was born, he did what most dads do: He wired every room of the house with cameras and microphones and recorded every moment of his kid’s life. Actually, that’s probably just normal for cognitive machine experts like Roy. Anyway, by the end of his son’s third year, he had 90,000 hours of video and a 140,000 hours of audio. That’s 200 terabytes of data, which his team crunched in order to identify the precise way that “Gaaaa!” eventually morphs into the word “water.” The resulting TED Talk gets way into the implications of Roy’s technology, but you only need to watch for about 4 minutes to watch the mind-blowing video illustrating the birth of a word.

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